Historical Volatility (Parkinson) (30-Day)
Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.
LifeX 2040 Term Income ETF (LDER) had 30-Day Historical Volatility (Parkinson) of 0.0209 for 2025-06-02.
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